| 1. | C ) the evaporation temperature has negligible effect on the average evaporation heat transfer coefficient at the same oil concentration
C )同一含油率下，蒸发温度对平均换热系数影响不大。 |
| 2. | In this paper , the main purpose is to study different refrigerants and different refrigeration systems at lower evaporating temperature in ideal cycle
本文主要研究不同制冷剂及不同的制冷循环在较低蒸发温度下对制冷性能的影响。 |
| 3. | For all refrigeration and air - conditioning appliances : domestic , commercial and industrial systems with high , moderate or low evaporation temperatures
适合一般冷藏及空气调节设备的广泛应用，如家庭式、商业及工业用的设备，操作于高、中或低的蒸发温度。 |
| 4. | On the basis of orthogonal test , the optimum procedure parameters were determined . it is evaporating temperature of 750 , reaction pressure of 4000pa and o2 content of 50 %
以此为指标对制备工艺优化，其最佳工艺为：蒸发温度750 、反应压力4000pa和o _ 2在混合气体中的比例50 。 |
| 5. | Tests the operation status of an air - cooled heat pump air conditioner under defrosting conditions , and records the evaporation temperature and exhaust fan current at different voltages
摘要实验测定了一台空气源热泵空调机组除霜工况下的运行状况，记录了蒸发温度和不同电压下的排风机电流。 |
| 6. | The results are significant . the change of evaporating temperature and control precision influence the temperature fluctuation of the air , which is relevant to the heat - load matching of warehouse and refrigerating units
温度场的波动主要是两个原因引起的：蒸发温度的波动及控制的精度，也就是气调库的热负荷要与机器的负荷相匹配。 |
| 7. | A new auto - cascade absorption refrigeration cycle was proposed in this thesis to get low temperatures by utilizing low thermal potential energy based on an overall reviews of innovations in absorption cycles during the past decade
本文在研究国内外吸收式制冷循环最新发展动态的基础上，首次提出了一种新型的自行复叠吸收制冷循环，以达到降低吸收制冷机的蒸发温度，利用低品位热能来进行深度冷冻的目的，拓宽吸收制冷机的工程应用范围。 |
| 8. | In the condition of same condensation temperature and evaporating temperature , the cop of the basic gax cycle is lower than that of the simplicity cascade cycle , but it is greatly better than the mid - pressure double - effect cascade cycle , on the other hand , the work condition is not as rigor as the simplicity cascade cycle , so the ratio of performance and cost is relatively high
在相同的冷凝温度和蒸发温度下，基本gax循环的性能系数( cop )虽然比单纯复叠循环的低，但要远远优于中压双效复叠循环，而且运行的条件不象单纯复叠循环那样苛刻，故基本gax循环的性价比较高。 |
| 9. | As we all know , the back - pressure valve ( also called evaporating pressure regulator ) is often used to regulate the evaporating temperature of every high - temperature refrigeratory in the system containing many different temperatures but single engine of the ship . but it is neglected that the energy of the system is lost and the efficiency of the system becomes low
众所周知船舶单机多库(简称为高、低温冷库)系统中，常用背压阀(蒸发压力调节阀)来调节各高温库的蒸发温度，但忽略了系统无形损耗的能量，效率也有所下降。 |
